body {
    color: #000;
    overflow-x: hidden;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-text-size-adjust: none;
    -moz-user-select: none;
    max-width: 540px;
    margin: 0 auto;
    background: #f4f4f4;
}

a {
    text-decoration: none;
}

div {
    box-sizing: border-box;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* 搜索模块 */
.search-box {
    display: flex;
    /* 固定定位跟父级没有关系，它以屏幕为准 */
    position: fixed;
    top: 0;
    left: 50%;
    /* 兼容老版本的浏览器 */
    -webkit-transform: translateX(-50%);
    /* 自身往左移50% */
    transform: translateX(-50%);
    width: 100%;
    min-width: 320px;
    max-width: 540px;
    height: 44px;
    /* background-color: pink; */
    background-color: #f6f6f6;
    border-top: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
}

.search {
    position: relative;
    height: 26px;
    line-height: 26px;
    border: 1px solid #ccc;
    flex: 1;
    font-size: 12px;
    color: #666;
    margin: 7px 10px;
    border-radius: 5px;
    padding-left: 25px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.search::before {
    content: '';
    /* display: block; */
    /* absolute不占位置，会飘起来 ，所以下面图片加margin-top*/
    position: absolute;
    top: 1px;
    left: 3px;
    height: 15px;
    width: 15px;
    background-image: url(../images/搜索.png);
    margin: 5px;
}

.user {
    width: 44px;
    height: 44px;
    /* background-color: purple; */
    font-size: 12px;
    text-align: center;
    color: skyblue;
}

.user::before {
    content: '';
    display: block;
    width: 23px;
    height: 23px;
    background-image: url(../images/icon.png);
    margin: 5px auto 0;
    border-radius: 50px;
}

/*  焦点导航栏*/
.focus {
    margin-top: 50px;
    width: 100%;
}

/* 局部导航栏 */
.local-nav {
    display: flex;
    height: 64px;
    background-color: #fff;
    margin: 3px 4px;
    border-radius: 8px;
}

.local-nav li {
    flex: 1;
    border: 1px solid black;

}

.main-nav-wrap {
    display: flex;
}

.main-nav-wrap ul {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    flex: 1;
    border: 1px solid black;

}

.main-nav-wrap ul li {
    width: 90px;
    height: 58px;
    background: red;
    margin: 5px;
    list-style: none;
    border: 1px solid green;
}

.sub-banner {
    width: 100%;
    height: 148px;
    display: flex;
    margin-top: 10px;
}

.banner {
    flex: 1;
    width: 50%;
    background-color: aqua;
    border: 1px solid pink;
}

.toolbox .tool-group {
    display: flex;
    justify-content: space-around;
    height: 30px;
}

.tool-group .tool-link {
    min-width: 100px;
    background: orange;
    text-align: center;
}

.tool-ver {
    height: 43px;
    background: skyblue;
    display: flex;
    justify-content: center;
}
.content{
    width: 100px;
    background: red;
    text-align: center;
}
.tabbar{
    display: flex;
    justify-content: space-around;
}
.tabbar a{
    width: 135px;
    height: 49px;
    text-align: center;
    background-color: aquamarine;
}
